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Finding the Fourth Proportional to 69,999.58, 105,062.50 and 47,455.70

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Solution

The fourth proportional to 69,999.58, 105,062.50 and 47,455.70 is: 71,226.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,999.58 : 105,062.50 = 47,455.70 : x
  2. Step 2: Convert to fraction form
    69,999.58/105,062.50 = 47,455.70/x
  3. Step 3: Cross multiply
    69,999.58x = 105,062.50 × 47,455.70
  4. Step 4: Simplify right side
    69,999.58x = 4,985,814,481.25
  5. Step 5: Solve for x
    x = 4,985,814,481.25/69,999.58
  6. Step 6: Final answer
    x = 71,226.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.